Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Jacksonville Beach, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:54AMSunset 8:02PM Sunday August 20, 2017 12:12 AM EDT (04:12 UTC) Moonrise 4:36AMMoonset 6:22PM Illumination 5% Phase: Waning Crescent; Moon at 27 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ452 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 300 Pm Edt Sat Aug 19 2017
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the evening.
Sunday..South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers in the morning. A slight chance of showers and Thunderstorms in the afternoon.
Sunday night..South southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday night..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Tuesday..East southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots becoming south southwest after midnight. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Wednesday..South southwest winds around 5 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth. A chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday..Southwest winds 5 to 10 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 300 Pm Edt Sat Aug 19 2017
Synopsis.. High pressure ridge axis south of the region will shift to the north through early next week. A cold front will move push into the southeast in the middle of the week.

7 Day Forecast for Marine Location Near Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 200037
afdjax
area forecast discussion
national weather service jacksonville fl
837 pm edt Sat aug 19 2017

Update There was a main convective boundary that came and met
up with the east coast sea breeze west or around of the i-95
corridor earlier this evening. Since then the east coast seabreeze
had moved into the the highway 301 where there is some residual
showers with embedded thunderstorms. With the loss of daytime
heating the atmosphere will be increasingly stable with showers
decreasing to near nil between 900 and 1000 pm. Coastal showers
may develop south of ponte vedra during the pre-dawn hours through
daybreak into the very early daylight hours Sunday. At the surface,
the ridge will shift northward through Sunday, with low level
flow becoming easterly. A surface boundary will remain across
southeast georgia through Sunday. A surface trough was moving
through the bahamas and will move across south florida and into
central florida on Sunday. The region will remain on the subsident
side of the trough through the day. This combined with the
subsidence aloft due to ridging building in from the east will
lead to lower rain chances on Sunday. The best chance of
showers storms will be along the surface boundary across southeast
georgia into the suwannee valley, with only 20-30% chance
elsewhere. It will be hot on Sunday with highs in the low to mid
90s, except upper 80s to near 90 at the beaches due to the onshore
flow. Heat indices will be in the 100-107f.

Aviation MainlyVFR conditions at most terminals this evening.

Kgnv has possible mvrf restrictions through 01z from decaying showers storms
moving southward the next hour.VFR conditions are forecast
overnight. Low stratus and patchy fog is possible over cecil field
terminal between 08z and 1230z.VFR conditions most of the morning
daylight hours. Showers are possible during the pre-dawn hours
into tomorrow morning for the ksgj as higher moisture begins to
return from the southeast. Brief period of restrictions during
the afternoon for terminals that receive stronger thunderstorms.

Looks like kvqq and kgnv will have the best chances of convective
activity as east coast seabreeze pushes most thunderstorm
activity west of highway 301 all the way to the i-75 corridor
during the mid to late afternoon.

Marine
The surface ridge axis will shift north tonight and Sunday. The
surface ridge will remain northeast of the region early next week.

A frontal boundary will then shift into the southeast by the
middle of the week, and the ridge will shift back to the south
again.

Rip currents: low risk through Sunday.

Preliminary point temps pops
Amg 74 94 75 92 10 40 10 40
ssi 79 90 79 88 10 20 20 30
jax 75 92 76 89 10 30 20 40
sgj 75 90 77 87 10 50 30 40
gnv 73 93 74 91 20 30 20 40
ocf 74 94 75 91 30 30 20 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Cordero enyedi corless


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi43 min S 1.9 G 2.9 81°F 85°F1016.4 hPa
LTJF1 8 mi43 min 82°F 77°F
BLIF1 11 mi43 min S 4.1 G 4.1 82°F 1016.9 hPa79°F
DMSF1 12 mi43 min 87°F
JXUF1 14 mi43 min 87°F
NFDF1 16 mi43 min SE 2.9 G 4.1 82°F 1016.8 hPa75°F
BKBF1 19 mi43 min SSE 5.1 G 7 83°F 88°F
41117 25 mi51 min 84°F3 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi43 min SSE 4.1 G 4.1 82°F 85°F1016.6 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi43 min 84°F2 ft
SAUF1 - St. Augustine, FL 30 mi73 min WSW 4.1 G 5.1 82°F 84°F1016.1 hPa (+1.5)78°F
RCYF1 35 mi43 min 88°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi88 min S 2.9 83°F 1017 hPa78°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi21 minSE 310.00 miFair80°F77°F90%1015.7 hPa
Jacksonville Craig Municipal Airport, FL9 mi20 minS 310.00 miFair77°F75°F96%1015.8 hPa
Jacksonville Naval Air Station, FL17 mi20 minS 710.00 miA Few Clouds83°F75°F77%1015.6 hPa
Northeast Florida Regional Airport, FL22 mi17 minWSW 310.00 miFair80°F75°F85%1016.4 hPa
Jacksonville International Airport, FL22 mi17 minWSW 410.00 miA Few Clouds76°F75°F100%1015.8 hPa
Fernandina Beach Municipal Airport, FL23 mi18 minN 010.00 miFair79°F73°F84%1015.6 hPa

Wind History from NRB (wind in knots)
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Last 24hrSW8W4W3W5S3S4SW4SW5SW7W5W5NW3E7SE9SE12SE15SE8S7S4S4SE5S3SW3SE3
1 day agoS5SW6SW8SW5SW5SW4SW4SW5SW4W3CalmNE9NE8E7SE7SE6SW5W7W6CalmS5SW5SW5SW3
2 days agoSW7W5W5W3W5W5SW5SW4W4W5Calm3NE63S7S93S10S9SW5W4S3SW3Calm

Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
Click for Map
Sun -- 01:26 AM EDT     -0.36 feet Low Tide
Sun -- 05:36 AM EDT     Moonrise
Sun -- 06:55 AM EDT     Sunrise
Sun -- 07:26 AM EDT     5.36 feet High Tide
Sun -- 01:38 PM EDT     -0.76 feet Low Tide
Sun -- 07:22 PM EDT     Moonset
Sun -- 07:57 PM EDT     6.23 feet High Tide
Sun -- 08:01 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.3-0.20.723.54.65.35.34.53.31.80.4-0.6-0.70.21.63.34.85.96.25.84.83.2

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sun -- 12:13 AM EDT     -2.32 knots Max Ebb
Sun -- 04:06 AM EDT     0.00 knots Slack
Sun -- 05:36 AM EDT     Moonrise
Sun -- 06:40 AM EDT     1.98 knots Max Flood
Sun -- 06:55 AM EDT     Sunrise
Sun -- 09:36 AM EDT     -0.00 knots Slack
Sun -- 12:27 PM EDT     -2.35 knots Max Ebb
Sun -- 04:11 PM EDT     0.00 knots Slack
Sun -- 07:03 PM EDT     2.80 knots Max Flood
Sun -- 07:22 PM EDT     Moonset
Sun -- 08:01 PM EDT     Sunset
Sun -- 10:14 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.3-2.3-1.9-1.2-0.11.11.921.60.8-0.6-1.8-2.3-2.3-2.1-1.4-0.31.22.42.82.61.80.4-1.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (0,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.